string-substitution

I want to do a substitution based on a wildcard. For example, change all "tenure" to "disposition" only if the word "tenure" comes after an '=' sign. Basically a regex that would match this =.*tenure The sed command that I have so for this is: sed 's/=.*tenure/=.*disposition/g' file.txt However, if I pass this to a file containing: blah blah blah = change "tenure" to "disposition" I get blah blah blah =.*disposition" to "disposition" instead of: blah blah blah = change "disposition" to "disposition" How do I do the substitution such that the wildcard in the regex won't be part of the

I have csv file contents having double quotes inside quoted text test,first,line,"you are a "kind" man",thanks again,second,li,"my "boss" is you",good I need to replace every double quote not preceded or succeeded by a comma by "" test,first,line,"you are a ""kind"" man",thanks again,second,li,"my ""boss"" is you",good so " is replaced by "" I tried x.gsub(/([^,])"([^,])/, "#{$1}\"\"#{$2}") but didn't work Phrogz Your regex needs to be a little more bold, in case the quotes occur at the start of the first value, or at the end of the last value: csv = <<ENDCSV test,first,line,"you are a "kind"

My current script will take an expression, ex: my $expression = '( a || b || c )'; and go through each boolean combination of inputs using sub/replace, like so: my $keys = join '|', keys %stimhash; $expression =~ s/($keys)\b/$stimhash{$1}/g; So for example expression may hold, ( 0 || 1 || 0 ) This works great. However, I would like to allow the variables (also in %stimhash) to contain a tag, *. my $expression = '( a* || b* || c* )'; Also, printing the keys of the stimhash returns: a*|b*|c* It is not properly substituting/replacing with the extra special character, *. It gives this warning: Use

In python 2.x you were allowed to do something like this: >>> print '%.2f' % 315.15321531321 315.15 However, i cannot get it to work for python 3.x, I tried different things, such as >>> print ('%.2f') % 315.15321531321 %.2f Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: unsupported operand type(s) for %: 'NoneType' and 'float' >>> print ("my number %") % 315.15321531321 my number % Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: unsupported operand type(s) for %: 'NoneType' and 'float' Then, I read about the .format() method